Quote:
Originally Posted by s211
Ask yourself why Calgary wants its next LRT leg through the downtown to go underground along 8th Avenue... they have literally been there and done that with the at-grade option, and it's a mess.
|
Calgary has to run the SE LRT underground because north south blocks where it will operate are too short for trains of enough capacity and there isn't another road with capacity to spare for another surface LRT route.
That being said, Calgary's current addition, the west line will use the surface route too. Even once the SE LRT and the 8th Ave subway is built, LRT from the west to NE line will still use the surface alignment.
The problem with the surface alignment is there is not enough capacity on it to operate with interlining.
Unless you think the new LRT routes in Edmonton will operate above 9,000 (might be able to squeeze it to 12,000) or so ppdph in the near term (20 years) it isn't worth it to build downtown. As it stands the system would likely have bottlenecks at similar levels outside of downtown at high traffic cross streets outside of downtown that would have to be grade seperated concurrently with a tunnel project to increase capacity.
Now, I think it would be more wise to build the 87 Ave alignment for the west LRT, but you still end up with a Millwoods line with no good way to use the downtown tunnel. (I could see a future council reversing the decision on the primary west line alignment by the time it is built, but that doesn't change Millwoods)